There are two amps in this car. I have one slash 250/1 running a couple JL 8w7-3 subs. There is also a slash 300/4 running a couple of pairs of JL XR525-csi componets. One set is in the doors and the other set is in the rear deck. This is the best sounding 911 I have ever heard. The componets are clear and those 8w7s really do a good job at hitting those low bass notes. (They sound like a real good set of 10s)